Minotetrastichus frontalis (Nees, 1834)

Minotetrastichus frontalis (Nees, 1834) View in CoL

Figs 1–7 View Figs 1–7

MATERIAL EXAMINED. Russia. Amur Prov.: KhR, 7 km SE Uril, Dyrovatka River , forest, 6–7.VIII 2022, 1♀ ( OK).

DISTRIBUTION. Russia: Nizhegorodskaya, Moscow and Ulyanovsk Provinces, Stavropol Territory, Crimea Republic, Ural, Altai Territory, Novosibisk Province, * Amur Province, Khabarovsk and Primorskiy Territories. Europe, Pakistan, United Arab Emirates, and North America .

HOSTS. Parasitoid of many species of leaf-mining Lepidoptera (especially Phyllonorycter spp. ), Coleoptera ( Rhynchaenus spp. ), and Hymenoptera (Tenthredinidae) , as gregarious ectoparasite of their larvae; sometimes as a facultative secondary or tertiary parasite of Braconidae and Chalcidoidea.

REMARKS. The Amurian specimen differs from the European ones in having a pedicel relatively shorter, flagellum with sparser and shorter longitudinal sensilla ( Figs 4–6 View Figs 1–7 ); mid lobe of mesoscutum with one row of 3 adnotaular setae on each side ( Fig. 7 View Figs 1–7 ) [European specimens often have 3–4 or more adnotaular setae with a second row of 1–2 setae ( Graham, 1987: P. 52–53)]. Also, the Amurian specimen is similar in colour to the European specimens (a very variable in colour), but differs from the later in having the posterior tergites of the gaster yellow, and the third, fourth and fifth tergites with blackish bands ( Figs 1–2 View Figs 1–7 ).